AVR-Chat

Thanks, John.  I have both an Atmel STK500 and JTAG Mk2, and both have 2x3
and 2x5 headers on them for programming.    I presume the 2 PDI pins should
map to 2 pins on each of these headers, but the manuals for both of these
don't mention PDI at all.   How does one connect it up?   Is there any way
to use the old ISP with xmega's?   Steve

 

From: AVR-Chat@yahoogroups.com [mailto:AVR-Chat@yahoogroups.com] On Behalf
Of John Samperi
Sent: Tuesday, August 31, 2010 2:43 PM
To: AVR-Chat@yahoogroups.com
Subject: Re: [AVR-Chat] xmega programming

 

  

At 07:33 AM 1/09/2010, you wrote:
>I'd appreciate it if someone could explain in a nutshell PDI
>vs old ISP.

PDI uses 1 dedicated pin + reset so there is no "wasted" pins,
ISP uses 3 SPI pins + reset.

PDI can also do debugging if you have the right tool
like a JTAG Mk2 of later types.

Remember the Xmegas do not run at 5V.

Regards

John Samperi



 



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